//加密字符
function encryptString(str) {
    const arr=[]
    for (let i = 0; i < str.length; i++) {
        arr.push(String.fromCharCode(str.charCodeAt(i) ^ 123))
    }
    return arr.join('');
}
//解密字符
function decryptString(str) {
    const arr=[]
    for (let i = 0; i < str.length; i++) {
        arr.push(String.fromCharCode(str.charCodeAt(i) ^ 123))
    }
    return arr.join('');
}
module.exports={
    encryptString,decryptString
}